# -*- coding: utf-8 -*-

#    OriginDB
#    Copyright (C) 2009  Jason Power <power.jg@gmail.com>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License along
#    with this program; if not, write to the Free Software Foundation, Inc.,
#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

from PyQt4.QtGui import *
from PyQt4.QtCore import *

dialog = None

def myerrorhandler(cursor, errorclass, errorvalue):
	"""

	If cursor is not None, (errorclass, errorvalue) is appended to
	cursor.messages; otherwise it is appended to
	connection.messages. Then errorclass is raised with errorvalue as
	the value.

	You can override this with your own error handler by assigning it
	to the instance.

	"""
	global dialog

	error = errorclass, errorvalue
	if cursor:
		cursor.messages.append(error)
	del cursor

	string = str(errorclass) + ": " + str(errorvalue)
	dialog = QMessageBox(QMessageBox.Critical, "Database Error", string, QMessageBox.Ok)
	dialog.show()

	raise errorclass, errorvalue
